Saudi Arabia says it will allow women to drive for the first time in the ultra-conservative kingdom.More >>

Saudi Arabia says it will allow women to drive for the first time in the ultra-conservative kingdom.More >>

(RNN) - The Italian Supreme Court has thrown out Amanda Knox's acquittal Tuesday, and she faces a retrial in the 2007 death of her roommate.

The murder conviction against her and her former boyfriend, Rafaelle Sollecito, was overturned on appeal in October 2011, after they spent four years in prison for the sexual assault and murder of British exchange student Meredith Kercher.

She returned to the U.S. in 2011, and was not in Italy for the hearing.

The court said the retrial will take place at the appeals court in Florence.

Knox's attorney says she is "shocked and saddened, but ready to fight," CNN reports.